zookeeper_dispatch

(PECL zookeeper >= 0.4.0)

zookeeper_dispatch — Calls callbacks for pending operations

说明

zookeeper_dispatch(): void

The zookeeper_dispatch() function calls the callbacks passwd by operations like Zookeeper::get() or Zookeeper::exists().

警告

Since version 0.4.0, this function must be called manually to achieve asynchronous operations. If you want that to be done automatically, you also can declare ticks at the beginning of your program.

After PHP 7.1, you can ignore this function. This extension uses EG(vm_interrupt) to implement async dispatch.

参数

此函数没有参数。

返回值

没有返回值。

错误／异常

This method emits PHP warning when callback could not be invoked.

范例

示例 #1 zookeeper_dispatch() example #1

Dispatch callbacks manually.


<?php
$client = new Zookeeper();
$client->connect('localhost:2181');
$client->get('/zookeeper', function() {
    echo "Callback was called".PHP_EOL;
});
while(true) {
    sleep(1);
    zookeeper_dispatch();
}
?>

示例 #2 zookeeper_dispatch() example #2

Declare ticks.


<?php
declare(ticks=1);

$client = new Zookeeper();
$client->connect('localhost:2181');
$client->get('/zookeeper', function() {
    echo "Callback was called".PHP_EOL;
});
while(true) {
    sleep(1);
}
?>

参见

Zookeeper::addAuth() - Specify application credentials
Zookeeper::connect() - Create a handle to used communicate with zookeeper
Zookeeper::__construct() - Create a handle to used communicate with zookeeper
Zookeeper::exists() - Checks the existence of a node in zookeeper synchronously
Zookeeper::get() - Gets the data associated with a node synchronously
Zookeeper::getChildren() - Lists the children of a node synchronously
Zookeeper::setWatcher() - Set a watcher function

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官方地址：https://www.php.net/manual/en/function.zookeeper-dispatch.php

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zookeeper_dispatch

说明

参数

返回值

错误／异常

范例

参见

User Contributed Notes